Strap clamping and stretching device



(No Model.)

J. COOPER.

STRAP GLAMPING AND STRETGHING DEVICE.

No. 335,179. Patented Feb. 2, 1886.

m l f Miran ramps nrnnrr triers.

STRAP CLAiVI PING AND STRETCHING DEVICE.

fiPEC'IFICATION forming part of Letters Patent No. 335,179. datedFebruary 2, 18186.

Serial No. 178,521. (No model.)

To aZZ whom it may concern.-

Be it known that I, J ORDON COOPER, of Lansdale, county of Montgomery,State of Pennsylvania, have invented an Improvement in Strap Clampingand Stretching Devices, of which the following is a specification.

My invention has reference to strap-tightening clamps, especiallyadapted for uniting apron-straps on harvesting machinery; and itconsists of a clamping-lever adapted to grip a strap and hold incombination with a hinged arm having a finger or pin adapted to catch inthe loop of a strap back of the buckle, and so arranged that upon movingthe clampinglever the buckle and free end of the strap are drawntogether and may be buckled, leaving the strap under considerabletension, and in details of construction, all of which are fully setforth in the following specification and shown in the accompanyingdrawings, which form part thereof.

In harvesting machinery, particularly, it is necessary to buckle theapron or elevating straps under considerable tension, and this inpractice is often a difficult operation for want of the properappliances.

The object of my invention is, therefore, to provide a suitablemechanism, which can be quickly applied to the straps, and, after thesame have been drawn together and buckled under the requisite tension,may be readily and easily removed, leaving the straps united.

It is also evident that this device may be used for many purposes otherthan in harvest ing machinery, for which it is especially de signed.

In the drawings, Figure 1 is a sectional side elevation on line so av,showing my improved device in the act of uniting two ends of a strap.Fig. 2 is a front elevation of the same. Fig. 3 is a similar view tothat shown in Fig. 1, only in this case the upper part of the lever isbroken away, and illustrates a modification. Figs. 4 and 5 are frontelevations of modified forms of clamps for the main lever.

A is the lever, and is provided on its lower extremity with the enlargedor widened part B.

O is a pivoted clamping strap or jaw, and is hinged to the lever A bypin E, and is adapted to swing under the lower edge, 13, clamping strapL between them, and in practice it is desirable to form a depression, D,therein,

so that the part B bends the strap downward into the jaw O and insures amore positive grip thereof. This jaw 0 should be made so that it can belowered or removed entirely when it is made double legged, as shown inFigs. 2 and 5, so that after the straps are united it may be lowered orremoved for disconnecting; but in case it is made L-shaped, as shown inFigs. 3 and 4, then it may be either pivoted rigidly, as indicated inFig. 4:, or the pivot E thereof may be secured to a slide, 0, working ina slot, a, of lever A, and locked in position by a set-screw, H,whereby, after the strap has been fastened, the jaw C may be lowered tofree it. This slide may also be used in the construction shown in Fig.5; but in this case the pin E would be detachable from the slide.

As shown in Figs. 1 and2, the jaw O is provided with notches or slots 0,which catch over the pin E on the lever A, so that after the strap L hasbeen united to the buckle M the jaw C may be knocked off the pin 0 andremoved.

Pivoted at E to the lever A, at some distance above the pin E, is thearm F, preferably provided on its end with a finger, G, adapted to catchthrough the loop of the strap back of So the buckle M, as shown in Fig.1; but, if desired, in place of the finger G, a clamp, I, such as shownin Fig. 3, may be used, which clamp may consist of a hinged jaw, J,carried by the arm F, and to which the block K is hinged, and isprevented from too much upward movement by an extension of the arm F.From this it is seen that if the arm F be pulled after the strap hasbeen placed between the jaws J and K, the said strap will be clamped bythem. Therefore it is seen that both the arm F and lever A may beprovided with a strap-clamp, if desired; but in practice I prefer theconstruction shown in Figs. 1 and 2.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A strap-tightening device consisting of a lever having its endprovided with a clampingjaw, in combination with a hinged arm connectedto the lever above the clamp and provided with a pin or finger,substantially as and for the purpose specified.

2. A strap-tightening device consisting of a lever having its endprovided with a detachable clamping 'aw, in combination with a hingedarm connected to the lever above the clamp and provided with a pin orfinger, substantially as and for the purpose specified.

3. The combination oflever A,hinged clamping'jaw O, and hinged arm F,having the pin or finger G, substantially as and for the purposespecified.

4. The combination of lever A, having the widened end B, forming ajaw,hinged clamping-jaw 0, having the depression D, and hinged arm F, havingthe pin or finger G, substantially as and for the purpose specified.

5. The combination of lever A, having'pin E, hinged clamping-jaw 0,having hooks c, and hinged arm F, having the pin or finger G,substantially as and for the purpose specified.

set my hand.

JORDON COOPER. Witnesses:

R. M. HUNTER, ANDREW ZAcNE, Jr.

